65310961 has 16 divisors (see below), whose sum is σ = 72483840. Its totient is φ = 58568400.

The previous prime is 65310941. The next prime is 65310979. The reversal of 65310961 is 16901356.

65310961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 65310961 - 2⁹ = 65310449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65310941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44286 + ... + 45736.

It is an arithmetic number, because the mean of its divisors is an integer number (4530240).

Almost surely, 2^65310961 is an apocalyptic number.

It is an amenable number.

65310961 is a deficient number, since it is larger than the sum of its proper divisors (7172879).

65310961 is a wasteful number, since it uses less digits than its factorization.

65310961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 65310961 is about 8081.5197209436. The cubic root of 65310961 is about 402.7127299022.

The spelling of 65310961 in words is "sixty-five million, three hundred ten thousand, nine hundred sixty-one".